......"The most consistent characteristic used to separate these two families are internal genitalia differences. Since internal genitalia require specific training and tools to identify, it is almost impossible to tell a member of the Gerridae apart from a member of the Veliidae by external visual cues.".....

.....it suddenly dawned on me, I don't want to become a bug scientist.

The folks at the University of California and Northern Virginia are good enough for me !

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